紧凑型矩形波导内功率合成器设计

介绍了一种基于常规速调管功率合成和脉冲压缩的微波源系统,为实现多路高峰值功率速调管的功率合成,设计了一种紧凑型、近平面结构的微波功率合成器。在2.856 GHz频点处,合成器各端口反射损耗和相对端口隔离度均大于45 dB。当两路峰值功率为50 MW的微波功率合成时,合成器内的最大场强约为9.6 MV/m,合成效率大于99%。在四端口功率合成器的基础上,通过两级合成可实现一种八端口微波功率合成器,当四路峰值功率50 MW的微波功率合成时,合成器内最大场强约为13.5 MV/m。

Design of compact power combiner in rectangular waveguide

This paper introduces a type of microwave source based on power combining of conventional klystrons and pulse compression. In order to achieve power combing of two high peak power klystrons, a compact planar power combiner was designed. The reflection losses of each ports and the isolation of opposite ports are both more than 45 dB at 2.856 GHz. Combining two 50 MW microwaves, the max surface field of four-port power combiner is about 9.6 MV/m, and the power combing efficiency is more than 99%. A type of eight-port combiner was realized based on two-stage combining of the four-port power combiner, when combining four 50 MW microwaves, the max surface field of the eight-port power combiner is about 13.5 MV/m.